JP2661041B2 - Automatic pressure regulating valve - Google Patents
Automatic pressure regulating valveInfo
- Publication number
- JP2661041B2 JP2661041B2 JP62145546A JP14554687A JP2661041B2 JP 2661041 B2 JP2661041 B2 JP 2661041B2 JP 62145546 A JP62145546 A JP 62145546A JP 14554687 A JP14554687 A JP 14554687A JP 2661041 B2 JP2661041 B2 JP 2661041B2
- Authority
- JP
- Japan
- Prior art keywords
- side valve
- water side
- hot water
- valve element
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Safety Valves (AREA)
- Multiple-Way Valves (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、給湯に用いられる湯水混合装置等の直前に
設けられ、湯水の供給圧力を等しくする自動調圧弁に関
する。
従来の技術
従来、この種の自動調圧弁としては、第４図に示すよ
うなものがあった（例えば特開昭56−90175号公報）。
第４図において、本体１にシリンダ２が装着され、シ
リンダ２の開口端部に湯側弁座３、水側弁座４を形成
し、円板状の湯側弁体５及び水側弁体６に弁軸７がシリ
ンダ２内に延びシリンダ２内に摺動自在に挿入された円
板状の受圧部材９にネジ止め10されており、湯側弁体５
と受圧部材９の間が湯室11、水側弁体６と受圧部材９の
間が水室12となっている。湯室11内と水室12内との圧力
バランスの変動による受圧部材９の摺動により一方の弁
体（５または６）がそれに対応する弁座（３または４）
に接近すると他方の弁体（５または６）がそれに対応す
る弁座（３または４）より離れる方向に移動し、湯水の
供給圧力を常に等しくするものである。
発明が解決しようとする問題点
しかしながら上記のような構成では、シリンダ２と摺
動する受圧部材９のわずかな間隙にゴミ，スケール等が
付着したりする可能性があり、その調圧機能が著しく低
下するおそれがあり、微少な圧力バランスの崩れに対し
て、湯水混合装置から吐出される混合水の温度が変動す
るなど、耐久的な問題を有していた。
本発明はかかる従来の問題点を解決するもので、スケ
ール付着，ゴミづまり等が生じ難く、耐久信頼性に優れ
た自動調圧弁を提供することを目的とする。
問題点を解決するための手段
上記問題点を解決するために本発明の自動調圧弁は、
湯流路及び水流路と、これら湯流路と水流路の１次圧力
を減圧する湯側弁体、湯側弁座及び水側弁体、水側弁座
と、シリンダと、このシリンダ内部を摺動するピストン
と、このピストンを挟み、湯側弁体と水側弁体を対向し
て連結する軸と、ピストンと湯側弁体、水側弁体間にそ
れぞれ構成する１次圧力室と、１次圧力室へ湯、水を旋
回流として噴出する旋回手段と、１次圧力室内に設けら
れた旋回流に作用しピストンと湯側弁体、水側弁体を同
一方向に回転させるフィンとから構成するものである。
作用
本発明は上記した構成によって、湯、水の２次圧力バ
ランスの変動により、一方の弁体がそれに対応する弁座
に接近すると他方の弁体がそれに対応する弁座より離れ
る方向に移動するという反比例的開閉動作を行ない、湯
水の２次圧力を常に等しくするもので、湯側弁体、水側
弁体及びピストンを回転させることで、スケール付着，
ゴミづまりを強制的に排除し、安定した調圧機能を得る
ものである。
実施例
以下、本発明の実施例を添付図面にもとづいて説明す
る。第１図に本発明の自動調圧弁の第１の実施例を示
し、第２図は、第１図における自動調圧弁のAA線断面図
を示す。第１図において、湯流路13及び水流路14の１次
圧力を減圧する湯側弁体15、湯側弁座16及び水側弁体1
7、水側弁座18を有し、前記２つの弁座（16,18）はシリ
ンダ19の両端を面取りして構成している。また、前記シ
リンダ19内を摺動するピストン20と、このピストン20を
挾み、湯側弁体15、水側弁体17を対向して連結する軸21
があり、前記ピストン20と湯側弁体15間で構成する湯側
１次圧力室22と、水側弁体17間で構成する水側１次圧力
室23への湯水の流入に対して、第２図に示すように、シ
リンダ19の軸方向に対し垂直で円周に沿って湯水が流入
する旋回手段であるそれぞれ２つの湯側流入口24と水側
流入口25をシリンダ19に設け、湯水が流入と同時に、同
一方向に旋回流を起こすように構成している。この旋回
流に対し、ピストン20と湯側弁体15間の軸上に湯側フィ
ン26、同じく水側弁体17間の軸上に水側フィン27を設
け、湯側、水側それぞれの流入口（24,25）からの噴
流、更に噴流から生じる旋回流がそれぞれのフィン（2
6,27）に作用し、軸21を同一方向に回転させ、すなわ
ち、ピストン20、湯側弁体15、水側弁体17が、流速に比
例して回転するものである。
以上の構成により、湯、水の１次圧力に対しては、弁
体15（17）とピストン20間で相殺され、減圧後の２次圧
力バランスの変動により、一方の弁体（15または17）が
それに対応する弁座（16または18）に接近すると、他方
の弁体（17または15）がそれに対応する弁座（18または
16）より離れる方向に移動するという反比例的開閉動作
を行ない、湯、水の２次圧力を常に等しくするものであ
る。また、湯、水の流れに対し、２つの弁体（15,17）
とピストン20は回転する構成としたため、シリンダ19と
の摺動面のスケール付着、それぞれ弁体、弁座間でのゴ
ミかみ等が生じ難く、強制的に排除するセルフクリーニ
ング作用があり、同時に回転することでピストン20、２
つの弁体（15,17）、軸21で構成される系が自動調心作
用を生じ、シリンダとの接触部分の減少、ガタツキの防
止等、調圧機能も安定し、耐久・信頼性に優れている。
第３図は、他の実施例として、ピストン20の両面にフ
ィン28を設け、一体構成とし、或いは弁体自体にフィン
を設けることも可能でより簡単で組み立て易い構成にな
っている。また、２つの弁体（15,17）自体にひねった
羽根を設け、単に湯水の流れに対し回転する構成も考え
られるが、弁体の形状が複雑になり、湯側、水側で同じ
弁体を使うことができない（羽根のひねる方向が異な
る）ため、割高となり、本実施例のように、湯水を噴流
状に流入させ、旋回流を起こし、それにより回転する構
成の方が、大きな回転トルクを得ることができ、より耐
久性に優れたものになっている。
発明の効果
以上のように本発明の自動調圧弁によれば次の効果が
得られる。
（１） ピストン、湯側弁体、水側弁体が、湯水の旋回
流により回転する構成としたため、スケールの付着，ゴ
ミづまりを強制的に排除し、耐久・信頼性の向上につな
がる。
（２） 湯水の旋回流により、２つの弁体、ピストンが
回転するため、シリンダに対し調心作用が生じ、すなわ
ち、シリンダとの接触部分が減少し摺動抵抗が小さくな
るので調圧機能が向上する。
（３） 旋回手段により湯、水の旋回流が生じ、その作
用を湯側弁体と水側弁体を同一方向に回転させるフィン
で受け、湯側弁体と水側弁体を回転させる構成としたの
で、構造が簡単で、組み立てし易く、安価に構成でき
る。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic pressure regulating valve that is provided immediately before a hot water mixing device or the like used for hot water supply and equalizes hot water supply pressure. 2. Description of the Related Art Conventionally, as this type of automatic pressure regulating valve, there has been one shown in FIG. 4 (for example, Japanese Patent Application Laid-Open No. 56-90175). In FIG. 4, a cylinder 2 is mounted on a main body 1, and a hot water side valve seat 3 and a water side valve seat 4 are formed at an open end of the cylinder 2, and a disc-shaped hot water side valve element 5 and a water side valve element are formed. 6, a valve shaft 7 extends into the cylinder 2 and is screwed 10 to a disk-shaped pressure receiving member 9 slidably inserted into the cylinder 2.
A water chamber 11 is provided between the pressure-receiving member 9 and the water chamber 12, and a water chamber 12 is provided between the water-side valve body 6 and the pressure-receiving member 9. The sliding of the pressure receiving member 9 due to the fluctuation of the pressure balance between the inside of the hot water chamber 11 and the inside of the water chamber 12 causes one of the valve bodies (5 or 6) to correspond to the corresponding valve seat (3 or 4).
, The other valve element (5 or 6) moves in a direction away from the corresponding valve seat (3 or 4) so that the supply pressure of hot and cold water is always equalized. Problems to be Solved by the Invention However, in the above configuration, there is a possibility that dust, scale, and the like may adhere to a slight gap between the cylinder 2 and the pressure receiving member 9 that slides, and the pressure regulation function is significantly reduced. There is a danger that the temperature of the mixed water discharged from the hot and cold water mixing device fluctuates due to a slight pressure imbalance, which may cause a durable problem. An object of the present invention is to solve such a conventional problem, and it is an object of the present invention to provide an automatic pressure regulating valve which is less likely to adhere to scales and dust and has excellent durability and reliability. Means for solving the problem In order to solve the above problems, the automatic pressure regulating valve of the present invention,
A hot water flow path and a water flow path, a hot water side valve body for reducing the primary pressure of the hot water flow path and the water flow path, a hot water side valve seat and a water side valve body, a water side valve seat, a cylinder, and a cylinder. A sliding piston, a shaft interposing the hot water side valve element and the water side valve element with the piston interposed therebetween, and a primary pressure chamber formed between the piston, the hot water side valve element and the water side valve element, respectively. Swirling means for jetting hot water and water into the primary pressure chamber as a swirling flow, and fins acting on the swirling flow provided in the primary pressure chamber to rotate the piston, the hot water side valve element and the water side valve element in the same direction. It consists of: According to the present invention, when one of the valve bodies approaches the corresponding valve seat due to the fluctuation of the secondary pressure balance of the hot water and the water, the other valve body moves in a direction away from the corresponding valve seat. The opening and closing operation is performed in inverse proportion to make the secondary pressure of the hot water always equal. By rotating the hot water side valve element, the water side valve element and the piston, the scale adhesion,
It is intended to forcibly remove dust and obtain a stable pressure regulation function. Embodiments Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 shows a first embodiment of the automatic pressure regulating valve of the present invention, and FIG. 2 is a sectional view taken along the line AA of the automatic pressure regulating valve in FIG. In FIG. 1, a hot-water-side valve element 15, a hot-water-side valve seat 16, and a water-side valve element 1 for reducing the primary pressure of the hot water flow path 13 and the water flow path 14 are shown.
7. It has a water-side valve seat 18, and the two valve seats (16, 18) are formed by chamfering both ends of the cylinder 19. A piston 20 that slides in the cylinder 19 and a shaft 21 that sandwiches the piston 20 and connects the hot water side valve element 15 and the water side valve element 17 to face each other.
There is a hot water side primary pressure chamber 22 formed between the piston 20 and the hot side valve body 15 and a hot water flow into a water side primary pressure chamber 23 formed between the water side valve body 17. As shown in FIG. 2, the cylinder 19 is provided with two hot water inlets 24 and two water inlets 25, each of which is a swirling means for hot water to flow along the circumference perpendicular to the axial direction of the cylinder 19, At the same time as hot water flows in, a swirling flow is generated in the same direction. For this swirling flow, a hot water fin 26 is provided on the axis between the piston 20 and the hot valve body 15, and a water fin 27 is also provided on the shaft between the water valve elements 17. The jets from the inlets (24, 25) and the swirl generated by the jets are
6, 27) to rotate the shaft 21 in the same direction, that is, the piston 20, the hot water side valve body 15, and the water side valve body 17 rotate in proportion to the flow velocity. With the above configuration, the primary pressure of hot water or water is offset between the valve body 15 (17) and the piston 20, and the fluctuation of the secondary pressure balance after the pressure reduction causes the change of one valve body (15 or 17). ) Approaches the corresponding valve seat (16 or 18), the other valve element (17 or 15) is moved to the corresponding valve seat (18 or 18).
16) The opening and closing operation is performed in an inverse proportion to move in a direction farther away, and the secondary pressure of hot water and water is always equalized. In addition, two valve bodies (15, 17) for hot water and water flow
The piston and the piston 20 are configured to rotate, so that the scale adheres to the sliding surface with the cylinder 19, dust is not easily generated between the valve body and the valve seat, and there is a self-cleaning action for forcibly removing the cylinder, and the piston rotates simultaneously. The piston 20, 2
A system composed of two valve elements (15, 17) and a shaft 21 produces a self-aligning action, stabilizes the pressure adjustment function such as reducing the contact with the cylinder and preventing rattling, and has excellent durability and reliability. ing. FIG. 3 shows another embodiment in which fins 28 are provided on both surfaces of the piston 20 to form an integral structure, or fins can be provided on the valve body itself, so that the structure is simpler and easier to assemble. In addition, it is conceivable to provide a twisted blade on the two valve bodies (15, 17) themselves and simply rotate with respect to the flow of hot and cold water. However, the shape of the valve bodies becomes complicated, and the same valve is used on the hot and cold water sides. Since the body cannot be used (the direction in which the blades are twisted is different), the cost is high, and as in the present embodiment, hot water flows in the form of a jet, causing a swirling flow, and the configuration that rotates by this causes a large rotation. The torque can be obtained and the durability is more excellent. Effects of the Invention As described above, according to the automatic pressure regulating valve of the present invention, the following effects can be obtained. (1) Since the piston, the hot-water-side valve element, and the water-side valve element are configured to be rotated by the swirling flow of hot and cold water, adhesion of scale and clogging of dust are forcibly eliminated, leading to improvement in durability and reliability. (2) The swirling flow of the hot and cold water rotates the two valve elements and the piston, so that the cylinder has a centering action. That is, the contact portion with the cylinder is reduced and the sliding resistance is reduced, so that the pressure adjustment function is performed. improves. (3) A configuration in which the swirling means generates a swirling flow of hot water and water, the action of which is received by fins for rotating the hot-water valve element and the water-side valve element in the same direction, and rotating the hot-water valve element and the water-side valve element. Thus, the structure is simple, easy to assemble, and inexpensive.
【図面の簡単な説明】
第１図は本発明の第１の実施例における自動調圧弁の断
面図、第２図は第１図における断面図のAA線断面図、第
３図は本発明の他の実施例の一部見取り図、第４図は従
来の自動調圧弁の断面図である。
13……湯流路、14……水流路、15……湯側弁体、16……
湯側弁座、17……水側弁体、18……水側弁座、19……シ
リンダ、20……ピストン、21……軸、22,23……１次圧
力室、24……湯側流入口（旋回手段）、25……水側流入
口（旋回手段）、26,27……フィン。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectional view of an automatic pressure regulating valve according to a first embodiment of the present invention, FIG. 2 is a sectional view taken along the line AA of FIG. 1, and FIG. FIG. 4 is a partial perspective view of another embodiment, and FIG. 4 is a sectional view of a conventional automatic pressure regulating valve. 13 ... hot water flow path, 14 ... water flow path, 15 ... hot water side valve element, 16 ...
Hot water side valve seat, 17 ... Water side valve body, 18 ... Water side valve seat, 19 ... Cylinder, 20 ... Piston, 21 ... Shaft, 22, 23 ... Primary pressure chamber, 24 ... Hot water Side inlets (swirl means), 25 ... Water side inlets (swirl means), 26, 27 ... Fins.
Claims (1)
力を減圧する湯側弁体、湯側弁座及び水側弁体、水側弁
座と、シリンダと、前記シリンダ内部を摺動するピスト
ンと、前記ピストンを挟み、前記湯側弁体と前記水側弁
体を対向して連結する軸と、前記ピストンと前記湯側弁
体、前記水側弁体間にそれぞれ構成する１次圧力室と、
前記１次圧力室へ湯、水を旋回流として噴出する旋回手
段と、前記１次圧力室内に設けられた前記旋回流に作用
し前記ピストンと前記湯側弁体、前記水側弁体を同一方
向に回転させるフィンとからなる自動調圧弁。 ２．湯側弁体及び水側弁体は、１次圧力に対してバラン
スをとった構成とした特許請求の範囲第１項記載の自動
調圧弁。 ３．ピストンは、その両面に複数のフィンをそなえた特
許請求の範囲第１項記載の自動調圧弁。 ４．フィンは、ピストンと湯側弁体、水側弁体間の軸上
に設けた特許請求の範囲第１項記載の自動調圧弁。 ５．シリンダは、その両側を面取りして弁座を兼ね、シ
リンダの軸方向に対し垂直で円周に沿って湯水が流入す
る２つ以上の流入口を有する特許請求の範囲第１項記載
の自動調圧弁。(57) [Claims] A hot water flow path and a water flow path; a hot water side valve element for reducing the primary pressure of the hot water flow path and the water flow path; a hot water side valve seat and a water side valve body; a water side valve seat; a cylinder; A sliding piston, a shaft sandwiching the piston, and connecting the hot water side valve element and the water side valve element so as to face each other, and between the piston, the hot water side valve element, and the water side valve element, respectively. A primary pressure chamber,
A swirling means for jetting hot water and water into the primary pressure chamber as a swirling flow, and the piston acting as the swirling flow provided in the primary pressure chamber, the hot water side valve element and the water side valve element being the same. Automatic pressure regulating valve consisting of fins that rotate in the direction. 2. 2. The automatic pressure regulating valve according to claim 1, wherein the hot water side valve element and the water side valve element are configured to be balanced with respect to the primary pressure. 3. 2. The automatic pressure regulating valve according to claim 1, wherein the piston has a plurality of fins on both surfaces thereof. 4. 2. The automatic pressure regulating valve according to claim 1, wherein the fin is provided on a shaft between the piston, the hot water side valve element, and the water side valve element. 5. 2. The automatic control according to claim 1, wherein the cylinder has two or more inflow ports, which are chamfered on both sides thereof and also serve as a valve seat, and into which the hot and cold water flows along a circumference perpendicular to the axial direction of the cylinder. Pressure valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62145546A JP2661041B2 (en) | 1987-06-11 | 1987-06-11 | Automatic pressure regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62145546A JP2661041B2 (en) | 1987-06-11 | 1987-06-11 | Automatic pressure regulating valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63312580A JPS63312580A (en) | 1988-12-21 |
| JP2661041B2 true JP2661041B2 (en) | 1997-10-08 |
Family
ID=15387682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62145546A Expired - Lifetime JP2661041B2 (en) | 1987-06-11 | 1987-06-11 | Automatic pressure regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2661041B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2702501B2 (en) * | 1988-04-30 | 1998-01-21 | 東陶機器株式会社 | Hot water mixing equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS622078A (en) * | 1985-06-25 | 1987-01-08 | Matsushita Electric Ind Co Ltd | Automatic pressure regulating valve |
-
1987
- 1987-06-11 JP JP62145546A patent/JP2661041B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63312580A (en) | 1988-12-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |